A sheet is discharged from between a discharge roller and a feeding roller as pinched between the rotating discharge roller and feeding roller. In this arrangement, a guide is arranged from an upstream side to a downstream side in a sheet discharge direction. The guide is arranged to contact the discharge roller at a downstream position in the discharge direction from a position where the discharge roller contacts the feeding roller.

A recording-medium ejecting device includes a first rotating member that rotates and a second rotating member that faces the first rotating member and that is rotated by rotation of the first rotating member. At least one of the first rotating member or the second rotating member is provided with projections and recesses at both ends thereof. The projections and recesses are alternately arranged in a circumferential direction. The projections extend continuously from a rotating member body in an axial direction and have a diameter greater than that of the rotating member body. The recesses extend continuously from the rotating member body in the axial direction and have a diameter smaller than that of the rotating member body. The projections at one end of the rotating member body and the projections at the other end of the rotating member body are at the same positions in a circumferential direction.

An image reading apparatus including: a transport path along which a recording material is transported from an upstream location toward a downstream location; and an image reader that reads an image formed on a portion of the recording material in the transport path, the portion being positioned at a specific location on the transport path. A width of the transport path in a thickness direction of the recording material transported along the transport path at the specific location is less than an upstream width and/or less than a downstream width, the upstream width being a width of the transport path at a location upstream of the specific location, the downstream width being a width of the transport path at a location downstream of the specific location.

An image reading apparatus including: a transport path along which a recording material is transported from an upstream location toward a downstream location; and an image reader that reads an image formed on a portion of the recording material in the transport path, the portion being positioned at a specific location on the transport path. A width of the transport path in a thickness direction of the recording material transported along the transport path at the specific location is less than an upstream width and/or less than a downstream width, the upstream width being a width of the transport path at a location upstream of the specific location, the downstream width being a width of the transport path at a location downstream of the specific location.

A device for stacking flat items has stacking wheels which have stacking fingers and, located between the stacking fingers, compartments for receiving flat items to be stacked, a conveying device for conveying the flat items into the compartments of the stacking wheels, a stripper for removing the flat items from the compartments of the stacking wheels, a support for receiving the flat items removed from the compartments of the stacking wheels and for forming a stack of flat items, in which at least one first stacking wheel mounted on a first shaft and at least one second stacking wheel mounted on a second shaft are provided.

A device for stacking flat items has stacking wheels which have stacking fingers and, located between the stacking fingers, compartments for receiving flat items to be stacked, a conveying device for conveying the flat items into the compartments of the stacking wheels, a stripper for removing the flat items from the compartments of the stacking wheels, a support for receiving the flat items removed from the compartments of the stacking wheels and for forming a stack of flat items, in which at least one first stacking wheel mounted on a first shaft and at least one second stacking wheel mounted on a second shaft are provided.

A medium transport device includes a corrugation unit including a plurality of corrugation members that come into contact with a medium transported in a transport direction and impart a corrugated shape to the medium, and a transport path through which the medium is transported. When a direction along a surface of the medium and intersecting the transport direction is a width direction, and a direction intersecting the surface of the medium is an intersecting direction, a position of the corrugation member in the width direction and a position thereof in the intersecting direction are adjustable.

A medium transport device includes a corrugation unit including a plurality of corrugation members that come into contact with a medium transported in a transport direction and impart a corrugated shape to the medium, and a transport path through which the medium is transported. When a direction along a surface of the medium and intersecting the transport direction is a width direction, and a direction intersecting the surface of the medium is an intersecting direction, a position of the corrugation member in the width direction and a position thereof in the intersecting direction are adjustable.

A sheet processing apparatus includes a first guide plate and a second guide plate facing with a given space in a thickness direction and having second and third openings, a sheet conveyance passage between the first and second guide plates, and a sheet conveyor including a drive source, a drive roller, a first driven roller, and a second driven roller. The drive roller protrudes from the first guide plate toward the sheet conveyance passage through the first opening. The first driven roller faces the drive roller and protrudes from the second guide plate toward the sheet conveyance passage through the second opening. The second driven roller protrudes from the second guide plate toward the sheet conveyance passage through the third opening. The second driven roller is disposed at a position shifted from the drive roller in a width direction orthogonal to the sheet conveyance direction and the thickness direction.

Provided is a sheet transport mechanism disposed between a feeding mechanism feeding out a sheet and an acceptance mechanism receiving the sheet. The sheet transport mechanism includes: a transport unit that transports the sheet; and a plurality of curl correction units each including a contact unit which comes into contact with the sheet that is transported by the transport unit. The plurality of curl correction units is disposed at positions different from each other on a transport route of the transport unit, respectively.